Climate Insights for Weihai

The climate in Weihai is temperate. The average annual temperature is 13°C and approximately 702mm of precipitation falls per year. July is the wettest month, receiving around 139mm of rainfall. Weihai is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -1°C. Light snow can occur between January and December.

Temperatures in Weihai vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 26°C. The coldest month is January, when overnight lows fall to -1°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between November and December, with a 7°C shift in average temperatures.

Weihai is a relatively dry area, receiving approximately 702mm of precipitation annually, which averages out to around 58mm per month. The wettest month is July, averaging 139mm of rainfall. August and June also tend to see above-average precipitation. The driest month is March, with just 21mm. That's 119mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 29cm annually. December is the snowiest month with approximately 11cm.

Weihai is moderately windy, with an average annual wind speed of 27km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 32km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 22km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 31km/h in winter, 28km/h in spring, 23km/h in summer, 27km/h in autumn.

It is currently spring in Weihai, which began on March 20, 2026. Weihai is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in January near -1°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Weihai is during May, June, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 62mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while January is the coldest period with lows dropping to -1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Weihai based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.